EP1712080A1 - Text subtitle decoder and method for decoding text subtitle streams - Google Patents

Text subtitle decoder and method for decoding text subtitle streams

Info

Publication number
EP1712080A1
EP1712080A1 EP04793460A EP04793460A EP1712080A1 EP 1712080 A1 EP1712080 A1 EP 1712080A1 EP 04793460 A EP04793460 A EP 04793460A EP 04793460 A EP04793460 A EP 04793460A EP 1712080 A1 EP1712080 A1 EP 1712080A1
Authority
EP
European Patent Office
Prior art keywords
text
text subtitle
font
data
style
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP04793460A
Other languages
German (de)
English (en)
French (fr)
Inventor
K. S. 104-1504 Chowon APT. 898 SEO
B. J. 111-204 Chonggu APT. KIM
Jea Yong Yoo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of EP1712080A1 publication Critical patent/EP1712080A1/en
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/0064—Health, life-saving or fire-fighting equipment
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
    • G11B27/105—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating discs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
    • G11B27/327—Table of contents
    • G11B27/329—Table of contents on a disc [VTOC]
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/34—Indicating arrangements 
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N9/82—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only
    • H04N9/8205—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only involving the multiplexing of an additional signal and the colour video signal
    • H04N9/8233—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only involving the multiplexing of an additional signal and the colour video signal the additional signal being a character code signal
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2541—Blu-ray discs; Blue laser DVR discs
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/765—Interface circuits between an apparatus for recording and another apparatus
    • H04N5/775—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/84—Television signal recording using optical recording
    • H04N5/85—Television signal recording using optical recording on discs or drums
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N9/804—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components
    • H04N9/8042—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components involving data reduction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N9/804—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components
    • H04N9/806—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components with processing of the sound signal
    • H04N9/8063—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components with processing of the sound signal using time division multiplex of the PCM audio and PCM video signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N9/82—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only
    • H04N9/8205—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only involving the multiplexing of an additional signal and the colour video signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N9/82—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only
    • H04N9/8205—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only involving the multiplexing of an additional signal and the colour video signal
    • H04N9/8227—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only involving the multiplexing of an additional signal and the colour video signal the additional signal being at least another television signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/87—Regeneration of colour television signals
    • H04N9/8715—Regeneration of colour television signals involving the mixing of the reproduced video signal with a non-recorded signal, e.g. a text signal

Definitions

  • the present invention relates to a text subtitle decoder and a method for decoding text
  • subtitle streams recorded in an optical disc are subtitle streams recorded in an optical disc.
  • Optical discs are widely used as an optical recording medium for recording mass data.
  • HD-DND such as the Blu-ray Disc (hereafter referred to as "BD")
  • BD Blu-ray Disc
  • next generation HD-DVD technology is known to be the next generation HD-DVD technology, are under establishment as a next generation HD-DVD technology
  • optical reproducing apparatuses having the Blu-ray Disc (BD) standards Accordingly, optical reproducing apparatuses having the Blu-ray Disc (BD) standards
  • BD ray Disc
  • main AV data be provided, but also managing information for reproducing the main data
  • supplementary data such as subtitles to the user.
  • the present invention is directed to a recording medium for reproduction of
  • An object of the present invention is to define specific reproduction control information in a
  • a text subtitle decoder includes a text subtitle
  • the text subtitle processor parses a
  • the text renderer represents a subtitle text to be displayed within a text subtitle region.
  • presentation controller control operations of the text subtitle processor and the text renderer.
  • the reproduction control information may include region style information which specifies
  • a region style of the text subtitle region including an overall font-related style of the text
  • the region style of the text subtitle region may be specified by at least one of a region
  • the text subtitle processor may further comprise
  • recorded in a recoding medium includes the steps of parsing a text subtitle stream into text
  • the text data represent a subtitle text to be
  • the reproduction control information may include region style information specifying a region style of the text subtitle region including an
  • the region style of the text subtitle region may be
  • a region position specified by at least one of a region position, a region size, a region background color, a text
  • the above method may further
  • recorded on a recording medium includes a text subtitle decoder, a graphics plane, and a
  • the text subtitle decoder parses a text subtitle stream into text data and
  • reproduction control information and renders the text data into bitmap data using the
  • the color look up table controls at least one of color
  • FIG. 1 illustrates an optical (e.g., Blu-ray) disc player according to the present invention
  • FIG. 2A illustrates data files recorded in an optical disc according to the present invention
  • FIG. 2B illustrates data storage areas of an optical disc according to the present invention
  • FIGs. 3A and 3B illustrate examples of a text subtitle region displayed on a display screen
  • FIG. 4 illustrates an apparatus for decoding AN streams and text subtitle streams according
  • FIG. 5 A illustrates an example of a page composition segment (PCS) information included
  • FIG. 5B illustrates an example of an object definition segment (ODS) information included
  • FIGs. 6A to 6D illustrate several examples of the text subtitle decoder shown in FIG. 4
  • FIG. 7 illustrates an apparatus of recording and/or reproducing text subtitle streams
  • main data represent audio/video (AN) data that are recorded on an AN
  • the optical disc by an author and belong to a title (e.g., a movie title).
  • a title e.g., a movie title.
  • AV streams are recorded in MPEG2 format and are often called AV streams or main AV streams.
  • supplementary data represent all other data associated with reproduction of the
  • main data examples of which are text subtitle streams, graphic streams, menu information,
  • supplementary audio streams e.g., for a browsable slideshow.
  • data streams may be recorded in MPEG2 format or any other data format, and they could be
  • a subtitle represents caption information for images
  • a user selects an option for viewing one of a plurality of subtitles for multiple languages
  • information may be recorded in an optical disc as MPEG2 transport packets, bitmap
  • caption information is text data
  • subtitle is called a text
  • a text subtitle stream includes text data for a text subtitle and reproduction control
  • a text subtitle stream may be recorded in an optical disc and exist as an independent stream file.
  • the text subtitle stream may be downloaded from an external data source.
  • FIG. 1 illustrates an optical disc player 1 according to the present invention.
  • the disc player is an optical disc player 1 according to the present invention. The disc player
  • optical disc an example of which is a Blu-ray disc.
  • the disc player 1 is also able to
  • the disc player 1 is able to receive or
  • download input data from an external data source examples of which are a digital television
  • the disc player 1 is able to receive AV streams and
  • the text subtitle data may
  • FIG. 2A illustrates data files recorded in a Blu-ray (BD) disc according to the present
  • BDMV BD directory
  • Each BD directory includes an index file (e.g., index.bdmv) and an object
  • MovieObject.bdmv MovieObject.bdmv
  • the index file contains data representing an index
  • Each BD directory includes three file directories including data to be reproduced, and
  • STREAM stream directory
  • PLAYLIST playlist directory
  • clip clip
  • CIPINF information directory
  • the stream directory includes audio/video (AV) stream files and supplementary stream files
  • the main AV streams and the text subtitle including one or more text subtitle stream files.
  • streams may be in the form of MPEG2 transport packets and be named as "*.m2ts", as
  • the text subtitle stream files exist as independent stream files within the
  • the text subtitle stream files could be in other data format and
  • the clip information directory includes clip information files (*.clpi) that correspond
  • timing information includes mapping information that maps presentation time stamp
  • PTS source packet number
  • SPN source packet number
  • each pair of a stream file and its corresponding clip information file is designated as a clip.
  • OlOOO.clpi included in CLIPINF includes the property and timing information
  • the playlist directory includes one or more PlayList files
  • each PlayList file includes at least one Playltem which designates at least one main AV clip and the reproduction time for the main AV clip. More specifically, a
  • Playltem includes information designating beginning and ending times (In-Time and Out-
  • Time for reproduction of a main AV clip, which may be designated by
  • PlayList file represents the
  • PlayList file may further includes a SubPlayltem, which is the basic reproduction control
  • SubPlayltem is used to reproduce a browsable slideshow, it may not be synchronized with
  • FIG. 2B illustrates data storage areas of an optical disc, in which the data files shown in FIG.
  • the disc volume includes a file system information
  • system In the file system information area, system
  • the general files include an index file and an object file, and the PlayList
  • files and clip information files include information required to reproduce the AV streams and text subtitle streams recorded in the stream area.
  • a user is able to select a specific play ⁇
  • FIGs. 3A and 3B illustrate examples of a text subtitle displayed on a display screen 2
  • subtitle stream includes data representing a subtitle text (e.g., characters).
  • a subtitle text e.g., characters
  • a text subtitle region including the text data is displayed on the display screen 2
  • FIG. 3A is in Korean, and the text data displayed within the region shown in FIG. 3B is in Korean
  • one or more text subtitle streams according to the present invention may be any one or more text subtitle streams according to the present invention.
  • subtitle stream files could be provided from an external data source, as shown in
  • the text subtitle streams may be in MPEG format or any other data format (e.g., text
  • FIG. 4 illustrates an apparatus of decoding AV streams and text subtitle streams according
  • a video decoding part 20 for decoding the video streams
  • a graphic decoding part decoding the graphic streams
  • a text subtitle decoding part 40 for decoding the text
  • the text subtitle streams may be extracted from an optical disc, or they could be inputted
  • the apparatus shown in FIG. 4 includes a
  • switch 6 which selects a data source. For example, if a text subtitle stream in MPEG format
  • the switch 6 selects data line A connected to the PID filter
  • a text subtitle stream in other format e.g., text, XML, or HTML
  • Each of the audio decoding part 10, video decoding part 20, and graphic decoding part 30 is identical to each of the audio decoding part 10, video decoding part 20, and graphic decoding part 30.
  • a transport buffer 11, 21, and 31 for storing a predetermined size of data streams to
  • a video plane 23 and a graphics plane 33 are included in the video decoding
  • the graphic decoding part 30 further includes a color look up table
  • (CLUT) 34 for controlling color and transparency levels of the displayable images.
  • the size of the subtitle preloading buffer 41 should be greater than 0.5
  • the size of the subtitle preloading buffer 41 should be determined based on the a total number of the text subtitle stream files.
  • the buffer size must be large enough to preload all the required text subtitle stream files at
  • extraction and use of the text subtitle streams can be done in a time-efficient manner.
  • control of the subtitle preloading buffer 41 could be quite simple due to the reason
  • the text subtitle decoding part 40 further includes a text subtitle (TXT_ST) decoder 42
  • a graphics plane 43 for converting the decoded subtitle stream(s) into displayable images
  • CLUT color look up table
  • An image superimposition part 50 included in the apparatus shown in FIG. 4 combines the
  • the video images outputted from the video plane 23 of the video decoding part 20 are identical to the video images outputted from the video plane 23 of the video decoding part 20.
  • decoding part 40 are initially superimposed over the video images by a first adder 52.
  • graphic decoding part 30 are presentation graphic images, these images are initially
  • the apparatus shown in FIG. 4 further includes a system decoder 4 for decoding input data
  • PCS page composition segment
  • region (global) style information including region (global) style information, and an object definition segment
  • ODS ODS information
  • data representing a subtitle text e.g., characters
  • inline data representing a subtitle text (e.g., characters)
  • region including the subtitle text is displayed on a display screen according to the region
  • PCS page composition segment
  • An object defined in the PCS information represents a text subtitle region (page) and an
  • the PCS information includes
  • composition object (*) including object identification
  • the PCS information further includes
  • region style information and this information is often denoted as region style information or global style information
  • region style (global style_page shown in FIG. 5A). For simplicity, it will be referred to as region style
  • the region style information specifies a region style of a text subtitle region including a
  • subtitle text where the region style includes an overall font-related style of the subtitle text
  • the region style information specifies
  • the region style by defining a plurality of display properties required for displaying the text
  • subtitle region including subtitle text on the display screen.
  • the region style For example, the region style
  • region_position indicating at least one of the
  • region_size indicating at least one of a width and height of the text
  • region_background_color a region background color
  • the region style information may further define
  • text_position indicating a position of the text data within the text subtitle
  • a text flow (text_flow) indicating at least one a character progression (left-to-right or
  • text_alignment a text alignment indicating one of left, center, right
  • line_space a line space indicating a distance between two adjacent baselines of the text data within the text subtitle region.
  • the region style information could also define other display properties not mentioned above.
  • the region style information further specifies the region style by defining an overall font-
  • the region style information may further define a font identification
  • region style information including the region style information, a font style (font_style) indicating at least one
  • font size indicating a vertical size of the
  • text included in the text subtitle region e.g., a character
  • font_color e.g., a font color
  • subtitle text within the text subtitle region is specified by at least one of the font
  • FIG. 5B illustrates an example of the object definition segment (ODS) information included
  • object_id object identification
  • a subtitle text e.g., characters
  • the ODS information includes object information including object
  • object_id object identification
  • object_version_number object version information
  • the ODS information further include information for applying a different font-
  • inline style information is often denoted as inline style information or local style information (local style_object
  • FIG. 5B For simplicity, it will be referred to as inline style information.
  • An object of the local style information is to apply a different font-related style for a
  • the inline style information specifies the specific font-related style by redefining at
  • a font style (font_style) indicating a different font
  • inline style information may further define various other font-related display
  • the ODS information further includes data (Text_data)
  • This text data may be included
  • object data information (Object_Data), which is included in object_data_fragment, as
  • the text data may be included in the ODS in other manner.
  • a text subtitle stream file may further include palette information for use with a color look
  • PDS text subtitle stream file
  • FIG. 6A illustrates a first example of the text subtitle decoder 42 shown in FIG. 4 according
  • subtitle preloading buffer (SPB) 41 may be initially arranged in the order of their
  • the coded data buffer 410 is only for optional and may not be included
  • TXT_ST text subtitle
  • the text subtitle parser 411 parsed by the text subtitle parser 411, the text data and the inline information are transferred
  • the font file may be extracted from
  • optical disc or a memory included in the optical disc player 1 shown in
  • the composition buffer (CB) 414 stores the region style information parsed by the text
  • subtitle parser 411 provides this information to the presentation controller 415.
  • object buffer (DB) 413 temporarily stores the bitmap data outputted from the text renderer
  • time information e.g., presentation time
  • the presentation controller 415 controls operations of the text renderer 412 and the
  • object buffer (DB) 413 according to the region style information, the inline style
  • FIG. 6B illustrates a second example of the text subtitle decoder 42 shown in FIG. 4
  • the text subtitle decoder 42 shown in FIG. 6B does not include an object buffer and a
  • composition buffer composition buffer.
  • a text subtitle processor (TXT ST parser) 421 parses the text subtitle
  • inline style information are directly transferred to a text renderer 422 and the region style
  • the text renderer 422 renders the text data into bitmap data under control of
  • the presentation controller 423 using the region style information, inline style information,
  • bitmap data is directly displayed through the graphics plane 43. Since
  • FIGs. 6C and 6D illustrate a third and fourth example of the text subtitle decoder 42 shown
  • a text subtitle stream includes
  • the text data may be a subtitle text (text data) in XML or HTML format, the text data may
  • tag information (often referred to as "mark-up syntax") indicating property
  • mark-up syntax is
  • a text subtitle processor (TXT_ST parser or segment converter) 431
  • the text subtitle decoder 42 converts a text subtitle stream originally provided
  • pseudo-ODS information including subtitle text data, and parses these information into the
  • pseudo-ODS information are parsed, the text data and inline style information are
  • composition buffer (CB) 434 a composition buffer (CB) 434. Thereafter, the text renderer 432 renders the
  • the text data into bitmap data under control of a graphic controller 435 using the region style information, the inline style information, and a font file.
  • the font file may be extracted from
  • optical disc or a memory included in the optical disc player 1 shown in
  • the composition buffer 434 stores the region style information parsed by the text subtitle
  • (DB) 433 temporarily stores the bitmap data outputted from the text renderer 432 and
  • time information e.g., presentation time stamps.
  • graphic controller 435 controls operations of the text renderer 432 and the object buffer 433
  • the region style information the inline style information, a corresponding clip
  • subtitle decoder 42 converts a text subtitle stream originally provided from the external data
  • the source into standardized information. For example, if the text subtitle stream is in XML or
  • HTML format it initially converts the data into pseudo-PCS information and pseudo-ODS
  • ODS information are parsed, the text data and inline style information are transferred to a
  • the text renderer 442 renders the text data into bitmap data under
  • the converted bitmap data is simultaneously displayed through the graphics plane 43. Since the storing processes of the bitmap data and the region style
  • FIG. 7 illustrates an apparatus of recording or reproducing text subtitle streams according to
  • the apparatus shown in FIG. 7 includes a pickup unit 11 that reads
  • the pickup unit 11 is
  • 11 includes data representing a subtitle text (text data) to be displayed within a text subtitle
  • region of a display screen region (global) style information specifying a region style of the
  • text subtitle region including an overall font-related style of the text data, and inline (local)
  • the apparatus further includes a driver (e.g., a servo) 14 which controls operation of the driver
  • control information included in the text subtitle streams and a microprocessor 16 which
  • the apparatus shown in FIG. 7 further includes an AV decoder 17 decoding the AV signal
  • the apparatus further includes a signal having a particular format, such as MPEG2 transport streams, and transmitting the converted signal to the signal processor 13.
  • the apparatus further includes a signal having a particular format, such as MPEG2 transport streams, and transmitting the converted signal to the signal processor 13.
  • the apparatus further includes a signal having a particular format, such as MPEG2 transport streams, and transmitting the converted signal to the signal processor 13.
  • the apparatus further includes a signal having a particular format, such as MPEG2 transport streams, and transmitting the converted signal to the signal processor 13.
  • the apparatus further includes a signal having a particular format, such as MPEG2 transport streams, and transmitting the converted signal to the signal processor 13.
  • the apparatus further includes a signal having a particular format, such as MPEG2 transport streams
  • controller 12 which controls operations of the signal processor 13, the AV decoder 17, and
EP04793460A 2004-02-03 2004-10-12 Text subtitle decoder and method for decoding text subtitle streams Ceased EP1712080A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020040006990A KR20050078907A (ko) 2004-02-03 2004-02-03 고밀도 광디스크의 서브타이틀 재생방법과 기록재생장치
PCT/KR2004/002598 WO2005076609A1 (en) 2004-02-03 2004-10-12 Text subtitle decoder and method for decoding text subtitle streams

Publications (1)

Publication Number Publication Date
EP1712080A1 true EP1712080A1 (en) 2006-10-18

Family

ID=36968342

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